quantities of ether. The ethereal solution is de-
hy 1*.^ S&d over solid caustic potash, the liquid filtered and the
*" ~^iTi*>ved on ^1C wa-ter-bath. The residue is now boiled
c: £>'i"Lllls ace^c anhydride, using an upright condenser, for
-. ~~ r in. the same flask, the side limb of which is stoppered.
^i ja^<^iits are then distilled. Unchanged acetic anhydride
Pas - - o^r°r ilt 13O~I5°° ; the thermometer then rises, and the
l^c5ili"K al 1 90 -200 Ms collected separately. When the
tc»n.iperature is reached, it is advisable to keep only the
^^^ °f^le ^o^clenscr filled with water. The distillate
i"^K*^lt: am^er colour. Yield, 20 grams. The residue in
s^ consists of acetanilide and methylacetanilicle and
^ on cooling'.
.s liquid ; b. p. 192'- ; sp.gr 0*957 at 20°.
" — Warm, with an equal volume of methyl iodide ; the
quatcrnary ammonium iodide will be formed,
* PREPARATION 60.
,oNN-CH:;)- /N(CHa)2 I
; Qll/ ;o or C(ill,<
> V XNO 4
i-, Caro, /)<v., 1874, 7, 810 and 963 ; Meldola, Trans.
C/K?M. ^'i><~., 1881, 39, 37-
120 grins, dimclhyla.nilinc.
53 „ (45 c.c.) cone, hydrochloric acid diluted with
Ioo c.c. of water.
I 3 „ sodium nitrite (in 20 c.c. of water.)
THc cliiiicthylaniline is dissolved in the dilute hydrochloric
acid ixa SL Ijcakcr and cooled in a freezing mixture. The sodium